Linked Datepicker

I am new to bootstrap and trying to use linked datepicker where

Only Date should be displayed (not time).

Default Selected Date shown in Datepicker as well as in textbox should be today's date on page load (before selecting any date from datepicker default date appeared in text box should be today's date).

Using jQuery('#startDate').datepicker().datepicker("setDate",new Date());
I can achieve point no. 2.

However, issue is future date disabled works for datepicker and startdate enddate selection works with datetimepicker. (Using datepicker and datetimepicker shows two datepikcer controls one on textbox other on addon)

How to combine this to achieve all the three point using only datepicker

Note that, according the docs, update accepts a Date object but $('#startDate').datepicker('update', new Date()); did not work for me (and I don't know why), while the following lines set a default date correctly: